Makes one wonder

Having worked at a variety of jobs, it amazes me that there is always one person that hates their job. And it is just not a minimum wage person. I have known executives that do not like their jobs. And usually these people cannot wait to tell coworkers the reason for their displeasure. I think that by sharing their bad disposition, they can bring other people into the same line of thinking.
My question is: if you do not like what you are doing, or where you are working, why not change? This is country is not a regime where you will work at your assigned job no matter what. We are free in this country to change companies, careers and cities where we live.
I was an accountant and found it not very stimulating and rather dull. Yes it paid well, but enjoying life is more than a big bank account and a new car. But then the current economy situation kind of shows what 'successful' people can do with a good credit rating. In a previous post, I related my career change to food service and several major relocations.
With the internet, looking for new career options is much easier and can be done without your current employer aware of it. Maybe you like your profession, but it the industry that is dull. When most people think of hospitality and travel, they picture hotel clerks, housekeeper, bartenders and restaurant staff. But a large hotel is similar to a manufacturing plant. There are office workers( front desk, operators, accountants)and the 'plant workers'( maintenance, housekeepers, food outlet staff). There are managers and staff employees. At corporate headquarters, it is the same as any large operation, with presidents, vice presidents, executive level and the general staff.
So if you are not satisfied with your current situation, consider changing fields and check out job.travel. The hospitality and travel industry may surprise you with the opportunities offered.